DE102007005357A1 - stator - Google Patents

Abstract

A connecting wire 41a extends from a first tooth 13h to a second tooth 31e so as to connect a plurality of coils U1~U4. An extension part is attached to the insulator so as to extend in the axial direction. The extension part (23) has an upper end (23e) in the axial direction, and a lower end (23f), and slits (24) extending from the upper end (23e) to the lower end (23f), and a radially outer surface (23a ) on. The connecting wire 41a extends from the first tooth 13h and is positioned by a bottom surface 25 and a side surface 26 of the slots 24. The connecting wire (41a) is guided by the slots (24) in the radially outer direction of the extension (23) and arranged to turn along the radially outer surface (23a) to the second tooth (13e). Therefore, the connection wire can be easily arranged.

Description

BACKGROUND THE INVENTION

The The present invention relates to a stator.

In Japanese Patent Publication [Hei] 11 [1999] -55883 a stator is disclosed as it is for one brushless Engine use finds. On the outer circumference of the insulator attached to this stator are a plurality of circumferentially extending outer circumferential grooves appropriate. The plurality of bonding wires are each in the corresponding one Outer circumferential groove added. Each connecting wire connects one Coil with another coil.

It is tedious, the variety of connecting wires each to be accommodated in the corresponding outer circumferential groove, and the connecting wires are difficult to arrange.

ABOLITION OF INVENTION

The The aim of the present invention is a stator in which the connecting wires easy to arrange.

According to one Aspect of the present invention, a stator is presented, the a stator core, an insulator and a plurality of coils. The stator core has an annular part, which defines the axial direction, as well as a plurality, of this annular Part of radially inwardly extending teeth.

Of the Isolator has an annular Sheath [coated] on, as well as one of the annular sheath portion from radially inwardly extending plurality of tooth sheaths, the respective teeth should cover. The plurality of teeth includes a first tooth and a second tooth around which the wireline is wound after this was wound around the first tooth. The wireline includes a connecting wire part, from the first tooth to the second tooth ranges and the majority of coils should connect. An extension part is so on the annular Jacket part attached so that it extends in the axial direction. The extension part has an upper end [distal end] in the axial direction, and a lower end [proximal end], and from the upper to the lower end extending notches, and bottom surfaces and Faces, spatially the slots determine, and an outer peripheral surface in the radial direction. Of the Connecting wire passes over from the first tooth and passes through the bottom surface and the side surfaces positioned. The connecting wire is arranged to be from the Slit in the radial direction to the outside of the extension ax guided is and along the outside in the radial direction to the second Tooth points.

The Features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings seen.

BRIEF DESCRIPTION OF THE DRAWINGS

The particular features of the present invention to be considered novel from the attached claims out. The objects and advantages of the present invention will be including the following explanation at the present time preferred embodiment understandable.

[It demonstrate]

1A a longitudinal cross-sectional view of a brushless motor according to the first embodiment of the present invention;

1B a partially enlarged view of 1A ;

2 a front view from the right of the stator in 1A ;

3 a partial cross-sectional view of this stator in 2 along the direction of arrow III;

4 an illustration of the arrangement for the wire lines from the interior of the stator in 1A seen in the radial direction;

5 a side view of the connecting wires in 1 with interchanging the right and left side, ie seen in the direction of arrow A in 1A ,

6 an illustration of the arrangement for the wire lines in 4 ;

7A a front view of the stator according to a second embodiment of the present invention;

7B a partially enlarged view of the slot part in 7A ;

8th a partial cross-sectional view of the stator in 7A along the direction of arrow III;

9 an enlarged view of the extension part of another [embodiment] example;

10 an enlarged view of the Ver Extension part of a further other example;

11 an enlarged view of the extension part of another further example;

12 an enlarged view of the extension part of another further example;

13A an enlarged view of the partial circumference of the extension part of another further example;

13B a side view of the partial circumference of the extension part in 13A in the direction of arrow XIIIB;

14 an enlarged side view of the partial circumference of the extension part of another [embodiment] example;

15 a longitudinal cross-sectional view of a brushless motor of another [embodiment] example.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following is a description of a first embodiment of the invention with reference to FIG 1A to 6 , 1A shows a brushless motor 1 with inner rotor according to the first embodiment. The brushless motor 1 consists of a cylindrical, bottomed housing 2 , one in the housing 2 firmly pressed cylindrical stator 10 , and one in Stator 10 in the radial direction inwardly rotatably received rotor 6 , The stator 10 has contact with the cylindrical wall 2e of housing 2 , The stator 10 is the outer peripheral surface of rotor core 7 across from.

An opening 2a of housing 2 is from a final frame 3 closed. The end frame 3 has a male part 3a [engaging portion] in the opening 2a is plugged in. The end frame 3 has a first surface 3e on top of the stator 10 is facing, and a second surface 3f on, the opposite direction from Stator 10 is turned.

As in the right part of 1A to see is in the central part of the floor of housing 2 a first recording part 2 B for receiving the first axle box 4 appropriate. In the central part of the end frame 3 is a second recording part 3b for receiving the second axle box 5 appropriate. The second recording part 3b exists in an annular wall.

The bottom of the case 2 and the first axle box are located on the right in 1A , The end frame 3 as well as the second axle bearing 5 are on the left in 1A ,

The rotor 6 has a rotating shaft 6a on and a rotor core 7 that on this rotary shaft 6a is attached. The first axle box 4 and the second axlebox 5 carry the rotary shaft 6a from rotor 6 so that it is rotatable. The rotary shaft 6a is from the inner ring of the first axle bearing 4 and the inner ring of the second axle bearing 5 secured. In the central part of the floor of the first receiving part 2 B is a depression 2c for receiving the oil seal 6b educated. At the bottom of the depression 2c is a through hole 2d (through hole) trained. The rotary shaft 6a penetrates the through hole 2d and sticks out of the case 2 out. The oil seal 6 seals the gap between the housing 2 and the rotary shaft 6a from.

The rotor core 7 points to the first axle box 4 facing first end surface 7a and one to the second axle box 5 facing second end surface 7d on. The first endface 7a is positioned to the right in 1A ie to the bottom of the housing 2 has. The first endface 7a points to the end frame 3 opposite side. The second endface 7d is positioned to the left in 1A , d h. end frame 3 has. The axis line of rotor core 7 agrees with the axis line of the rotary shaft 6a match.

The rotor core 7 comprises a plurality of layers stacked core sheets. In the rotor core 7 are as rotor magnets a plurality of permanent magnets 8th embedded. At the second end surface 7d from rotor core 7 is a recording well 7b attached to the second axle box 5 and the second receiving part 3b to be able to record. That means the bottom of the receiving recess 7b has a larger diameter than the second receiving part. The endface 5a on the opposite side of the end frame 3 of the second axlebox 5 lies between the first end surface 7a and the second end surface 7d , That means the rotor core 7 and the second axlebox 5 superimposed radially from the outside. Accordingly, the brushless motor becomes more compact in the axial direction.

At the second end surface 7d of the rotor core 7 is an annular sensor magnet 9 attached. The sensor magnet 9 has alternately attached N poles and S poles at a given angle.

As in 2 to see is the stator 10 with a cylindrical stator core 11 Mistake.

The stator core 11 has an annular part 12 on and twelve teeth 13a ~ 13l extending radially from the inner periphery of this annular part extend inwards. As in 1A to see are the annular part 12 and the teeth 13a ~ 13l , integrally formed.

2 shows the stator in 1A from the right. The first tooth 13a located at the top end of 2 , Starting from the first tooth 13a , follow the second tooth in a clockwise direction 13b , the third tooth 13c [etc. until the twelfth tooth 13l ,

The annular part 12 is along the inner circumference 2f of the housing 2 arranged. The teeth 13a ~ 13l are arranged at equal angular intervals, concretely at intervals of 30 ° in the circumferential direction. The stator core 11 has one on the end frame 3 opposite side located first end surface 11e and one to the end frame 3 facing second end surface 11f on.

As in 1A and 3 to see are the teeth 13a ~ 13l with a [single], in 1A and 3 shown on the right first insulator 20 , and with a [single] in 1A and 3 left shown second insulator 30 jacketed [coated]. The first insulator 20 is located on the first end face 11e , The second insulator 30 is located on the second end face 11f , The second insulator 30 has a second surface 30a on that to the end frame 3 has.

As in 2 and 4 to see is every single one of the aforementioned teeth 13a ~ 13l by means of the first insulator 20 and the second insulator 30 covered. The teeth 13a ~ 13l are with the wire lines 40 . 50 . 60 wrapped in the form of a single-hole winding [concentrated winding].

As a result, twelve coils U1~U4, V1~V4, and W1~W4 are formed. The wire lines 40 ~ 60 are each provided with a sheath and isolated from each other. The individual coils U1 ~ W4 have a first coil end 44 on the end frame 3 opposite side, and a second coil end 44 on that to the end frame 3 has. In other words, the first coil end 44 is the end of the coils U1 ~ W4 in the axial direction.

As in 2 shown points the first wire line 40 a single phase, specifically the U phase.

The first wire line 40 the first coil U1 forms around the eighth tooth 13h from, the second coil U2 to the eleventh tooth 13k out, the third coil U3 around the second tooth 13b off and the fourth coil U4 to the fifth tooth 13e out.

Likewise, the other second phase, the V phase, has another single phase 50 the fifth coil VV1 around the seventh tooth 13g off, the sixth coil V2 around the tenth tooth 13j off, the seventh coil V3 around the first tooth 13a and the eighth coil V4 around the fourth tooth 13d out.

Likewise, that forms another single phase, the W phase, having third wireline 60 the ninth coil W1 around the sixth tooth 13f off, the tenth coil W2 around the ninth tooth 13l out, the eleventh coil W3 around the twelfth tooth 13l and the twelfth coil W4 around the third tooth 13c out.

As in 2 to see, the coil W1 is around the sixth tooth 13f wound. From the coil W1, the coils W1, VI, U1, W2, V2, U2, W3, V3, U3, W4, V4 and U4 are lined up in the clockwise direction.

As in 1A and 2 to see, the first insulator points 20 , a single annular sheath [coating portion] 21 , and a plurality of tooth sheath parts 22 on that the teeth 13a ~ 13l wrap. Every single tooth sheath part 22 extends from this annular sheath part 21 radially inward. Every single tooth sheath part 22 is with the annular sheath part 21 integrally formed.

The annular sheath part 21 encases the stator core 11 , The annular sheath part 21 has one in the stator core 11 opposite direction pointing support surface [support surface] 21a on. The support surface 21a serves as an axially crossing support surface for supporting the wire lines 40 ~ 60 , Specifically, the support surface is 21a vertical to the axial direction. The support surface 21a points in the direction opposite to the end frame, ie to the right in 1A , The annular sheath part 21 has as outer circumference of the first insulator 20 a base outer circumferential surface [base] 21b on.

As in 1A and 2 to see are at each cross section of the individual coils U1 ~ U4, V1 ~ V4, W1 ~ W4 respectively the wire lines 40 ~ 60 like barrels [Orig. Literally: sacks] [stacked barrels] stacked on top of each other. For example, it is to tooth 13g more precisely: on the tooth sheath part 22 by means of the line 50 formed the coil V1. The tooth sheath part 22 has an axially crossing coil support surface 22a on. The coil support surface 22a points into the end frame 3 opposite direction and is vertical to the axial direction.

The coil V1 includes one of the coil support surface 22a from the first layer stacked in this order 50a , a second layer 50b , a third layer 50c , and a fourth layer 50d , The first shift 50a is along the coils support surface 22a aligned. The second layer 50b is outside the first shift 50a ie in 1A right. The second layer 50b is arranged in such a way that it is in the recesses between the circular cross sections of the line 50 added. Likewise, there is the third layer 50c outside the second layer 50b , The third layer 50b fits into the recesses between the circular cross sections of the pipe 50 ,

As in 1A . 5 and 6 to see, the first insulator points 20 a cylindrical extension part 23 on, extending from the annular shell part 21 extends in the axial direction. The extension part 23 extends from the support surface 21a out in the opposite direction to the end frame 3 , The extension part 23 has an upper end in the axial direction 23e and one on the support surface 21a located lower end 23f on. In 5 and 6 extends the extension part 23 up.

The support surface 21a is outside the extension 23 in the radial direction. The extension part 23 lies from the Basisaussenumfangsfläche 21 at a distance greater than the diameter of the wire lines 40 ~ 60 in the radial direction inwards. This means that the guide outer peripheral surface 23a as a radial outer peripheral surface of the extension part 23 from the base outer circumferential surface 21b off in the radial direction inwards. The guiding outer circumferential surface 23a is parallel to the axial direction and vertical to the support surface 21 ,

As in 2 . 3 . 5 and 6 to see are at the extension part 23 a plurality of, specifically 16, slots [notches] 24a ~ 24p educated.

As in 2 to see, is the first slot 24a between the seventh tooth 13g and the eighth tooth 13h , That is, the first slot 24a is located between the first coil U1 and the fifth coil V1. Starting from the first slot 24a , sixteen slots are lined up in a clockwise direction 24a . 24b . 24c . 24d . 24e . 24f . 24g . 24 hours . 24i . 24j . 24k . 24l . 24m . 24n . 24o and 24p side by side.

The slots 24a ~ 24p reach from the top 23e of the extension part 23 to its lower end 23f , That is, the extension part 23 has 16 retention protrusions 27a ~ 27p on, the sixteen slots 24a ~ 24p divide up. Each retaining overhang 27a extends along the axial direction in the end frame 3 opposite direction. The slots 24a ~ 24p are in some cases too "slits 24 generalized 27a ~ 27p are in some cases too "retaining overhangs 27 "generalized.

The extension 23 has sixteen floor parts and thirty-two sidewall parts around the sixteen slots 24a ~ 24p to divide. A bottom part and two side wall parts 26 divide a slot. A bottom part has at least one bottom surface 25 on. "Floor area 25 "is a general term for a plurality of floor surfaces." Side surface 26 "stands as a generic name for a plurality of side surfaces.

As in 2 and 4 see the wire lines 40 . 50 . 60 each a first end 42a . 52a . 62a and a second end located on the opposite side 42b . 52b . 62b on. The first ends 42a ~ 62a are to a control circuit 70 connected. The second ends 42b ~ 62b are connected to the neutral points N, the inflection points [midway points] of the wireline 40 ~ 60 , The first ends 42a ~ 62a and the second ends 42b ~ 62b are on the end frame 3 arranged. The plurality of arrows in 4 denotes the winding direction of the wire lines 40 ~ 60 ,

The second retaining overhang 27b and the third retaining overhang 27c disconnect the slot between them 24b , That means that in 2 clockwise the sixteen retaining projections 27a . 27b . 27c . 27d . 27e . 27f . 27g . 27h . 27i . 27j . 27k . 27l . 27m . 27n . 27o and 27p side by side rows.

As in 4 to see is the first end 42a a part of the first line 40 between the first coil U1 and the second coil U2. The first end 52a a part of the second line 50 between the fifth coil V1 and the sixth coil V2. The first end 62a a part of the third line 60 between the ninth coil W1 and the tenth coil W2.

The second end 42b is part of the first line 40 between the fourth coil U4 and the third coil U3. The second end 52b is part of the second line 50 between the eighth coil V4 and the seventh coil V3. The second end 62b is part of the third line 60 between the twelfth coil W4 and the eleventh coil W3.

The administration 40 includes the connecting wires 41a ~ 41d , The administration 50 includes the connecting wires 51a ~ 51d , The administration 60 includes the connecting wires 61a ~ 61d , Every single connecting wire 41a ~ 41d . 51a ~ 51d . 61a ~ 61d operates under the respective corresponding coil pairs U1 ~ U4, V1 ~ V4, W1 ~ W4 as part of the wire lines 40 . 50 . 60 which extend from the first to the second coil.

As in 4 The first connecting wire is enough to see 41a from the first coil U1 to the fourth coil U4. That means, the first connecting wire 41a ranges from that of the first coil U1 corresponding eighth tooth 13h to the fourth coil U4 corresponding fifth tooth 13e , That means the line 40 will be around the eighth tooth 13h wrapped, and then around the fifth tooth 13e wound. With respect to the first connecting wire 41a corresponds to the eighth tooth 13h the first tooth in the claims. With respect to the first connecting wire 41a corresponds to the eighth tooth 13e the second tooth in the claims.

The second connecting wire 41b ranges from the fourth coil U4 to the third coil U3. The third connecting wire 41c ranges from the third coil U3 to the second coil U2. The fourth connecting wire 41d ranges from the second coil U2 to the first coil U1.

The fifth connecting wire 51a ranges from the fifth coil V1 to the eighth coil V4. The sixth connecting wire 51b ranges from the eighth coil V4 to the seventh coil V3. The seventh connecting wire 51c ranges from the seventh coil V3 to the sixth coil V2. The eighth connecting wire 51d ranges from the sixth coil V2 to the fifth coil V1.

The ninth connecting wire 61a ranges from the ninth coil W1 to the twelfth coil W4. The tenth connecting wire 61b ranges from the twelfth coil W4 to the eleventh coil W3. The eleventh connecting wire 61c ranges from the eleventh coil W3 to the tenth coil W2. The twelfth connecting wire 61d ranges from the tenth coil W2 to the ninth coil W1.

The floor area 25 and the side surface [n] 26 act as a holding portion for the positioning of the connecting wires 41a ~ 61d , The connecting wires 41a ~ 61d are due to their positioning by means of the floor area 25 and the side surface [n] 26 from the radial inner direction of the extension part 23 led to the outside. The in radial outer direction of the extension part 23 guided connecting wires 41a ~ 61d run over the support surface 21 and the outer peripheral surface 23a ,

As in 5 to see, runs z. B. the first connecting wire 41a , eighth tooth corresponding to the first coil U1 13h until the fourth coil corresponding fifth tooth 13e over the guide outer circumferential surface 23d such that it connects the first coil U1 and the fourth coil U4. The first connecting wire 41a is from the radially inner direction of the extension part 23 positioned fourth coil U4 through the first slot 24a through, and thus to the radial outer direction of the extension part 23 guided.

The first connecting wire 41a extends along the guide outer circumferential surface 23d and the support surface 21d in the circumferential direction, so that he on the first holding projection 27a , the sixteenth retaining overhang 27p , the fifteenth retaining overhang 27o and the fourteenth retaining overhang 27n sits up [= this connects]. That means, the first connecting wire 41a is from the radial inner direction of the extension part 23 guided to the outside and extends over the Führungsaussenumfangsfläche 23a , The first connecting wire 41a runs through the thirteenth slot 24m through, is from the radial outer direction of the extension part 23 pulled inwards and thus extends to the first coil U1.

The bottom of the first slot 24a is stepped and has a first floor 25a and one of this first floor 25a out closer to the top 23e lying 11 floor 28a on. The distance between the first floor 25a and the eleventh floor 28a corresponds to the diameter D of the wire lines 40 ~ 60 , The bottom of the thirteenth slot 24 is flat and has a second floor area 25b on. The first floor area 25a and the second floor area 25b lie on the same level as support surface 21a , The first floor area 25a and the second floor area 25b position the first connecting wire 41a with respect to the axial direction. The eleventh floor area 28a positions the fourth connection wire 41d with respect to the axial direction The first retaining overhang 27a has a first side surface 26a on that towards the first slot 24a has. The fourteenth retaining overhang 27n has a second side surface 26b on that towards the thirteenth slot 24m has. The first side surface 26a and the second side surface 26b position the first connecting wire 41a with respect to the circumferential direction.

Likewise passes through the eleventh connecting wire 61c the second slot 24b , thus becomes out of the radial outer direction of the extension part 23 pulled inwards and connected to the tenth coil W2. The twelfth connecting wire 61d extends from the tenth coil W2, passes through the third slot 24c and thus becomes of the radial Innnenrichtung of the connecting part 23 pulled outwards.

The third retaining overhang 27c has a third side surface 26c on that towards the second slot 24b has. The third side surface 26c positions the eleventh connecting wire 61c with respect to the circumferential direction. The fourth side surface 26d positions the eleventh connecting wire 61d with respect to the circumferential direction.

As in 2 [Engl.Übers. wrong: 7] is the third side face 26c at the lower [proximal] end of the tenth coil W2 corresponding side surface of the ninth tooth 13i arranged. The fourth side surface 26d is disposed at the lower end of the side surface of the tenth coil W2. It is therefore easy to wind the eleventh line connected to the tenth coil W2 61c at the ninth tooth 31i to start. In addition, it is easy, the twelfth line 16d , which after finishing the winding around the ninth tooth 13i from the tenth coil W2 extends in the radial outer direction of the extension part 23 respectively. In this way, the distance between the third side surface 26c and the tooth 13i smaller in the circumferential direction than the distance between the fourth side surface 26d and the tooth 13i in the circumferential direction.

That means, as in 2 and 6 to see the side surfaces 26 the single slots 24a ~ 24p are arranged to coincide with the initial position and the end position of the winding of the coils U1 ~ W4 around the individual teeth 13a ~ 13l to match. Accordingly, the side surface 26 for positioning the connecting wires 41a ~ 61d for beginning the winding of the coils U1 ~ W4 at the lower end of the side surface of tooth 13 arranged. The side surface 26 for positioning the connecting wires extending from the coils U1 ~ W4 after completion of the winding 41a ~ 61d is arranged at the lower end of the coils U1 ~ W4.

The tenth holding overhang 27j has a fifth side surface 26e in the tenth slot 24j on. The tenth connecting wire 61b is at the tenth slot 24j bent so that it has an angle over 90 °. The sixth connecting wire 51b is at the twelfth slot 241 bent so that it has an angle over 90 °. The fourth connecting wire 41b is at the fourteenth slot 24n bent so that it has an angle over 90 °.

More precisely, the tenth connecting wire 61b bent at an angle greater than 90 ° within a vertical plane to the axial direction. The fifth side surface 26e is circumferentially spaced from the side surface of the twelfth coil W4. Therefore, the tenth connecting wire extends 61b from the twelfth coil W4 to the tenth slot 24j in the circumferential direction, becomes 180 ° around the fifth side surface 26e bent back and so through the tenth slot 24j through and along the outer peripheral surface 23a guided.

In other words, that the fifth side surface 26e the tenth lead 61b From the radial outer direction in the inner direction bends back by 180 °, [engages] holds the tenth connecting wire 61b with respect to its circumferential direction and its radial direction.

In contrast, z. B. the twelfth connecting wire 61d at the third slot 24c bent at an angle smaller than 90 °. The distance [narrows. S 16 wrong: direction] in the circumferential direction between the fourth side surface 26d and the ninth tooth 13i corresponds approximately to the distance in the circumferential direction between the side surface of the tenth coil W2 and the ninth tooth 13i , This is how the twelfth connecting wire becomes 61d after completion of the winding of the tenth coil W2 from the axially extending direction is bent by 90 ° in the radial outer direction and thus passes through the third slot 24c , The twelfth connecting wire 61d becomes 90 ° from the radially extending direction in the circumferential direction on the guide outer circumferential surface due to its bending 23a arranged. Accordingly, the twelfth connecting wire 61d at the third slot 24c bent at an angle smaller than 90 °.

As in 5 and 6 to see is the position of the floor area 25 with respect to the axial direction in accordance with the position of the connecting wires 41a ~ 61d established. In other words, the position of the floor surface 25 in terms of the direction in which the extension 23 extends in accordance with the passing position [cross] of the connecting wires 41a ~ 61d on the guide peripheral surface 23d established.

The bottom surface of the sixteenth slot 24p is stepped, it has a third bottom surface 25c and one, from this third floor area 25c out of the diameter D closer to the upper end 23e located thirteenth floor area 28c on. The bottom surface of the fifteenth slot 24o is stepped, it has a fourth bottom surface 25d and one, from this fourth floor area 25d out of the diameter D closer to the upper end 23e located fourteenth floor area 28d on. The fourth floor area 25d is located from the holding surface 21 from twice the diameter D, ie 2 D closer to the top 23e ,

As in 5 and 6 to see determines the third floor area 25c the position of the fifth connecting wire extending from the eighth coil V4 to the fifth coil V1 51a , This will be the fifth connecting wire 51a in one of the support surface 21a Positioned around the diameter D remote position. The fourth floor area 25d determines the position of the ninth connection wire extending from the twelfth coil W4 to the ninth coil W1 61a , This will be the ninth connection wire 61a in one of the support surface 21a Positioned around the diameter D remote position. In this way are the postitions of the fifth connecting wire 51a and the ninth connecting wire 61a fixed in the axial direction.

The fifth connecting wire 51a is the first connection wire 41a superimposed in the axial direction. The ninth connecting wire 61a is to the fifth connecting wire 51a superimposed in the axial direction. That is, the third floor area 25c determines the position of the fifth connection wire 51a that is on the extension part 23 extends and compact in the axial direction on the first connecting wire 41a is deposited, which was previously on the extension part 23 has extended. Likewise determines the fourth floor area 25d the position of the fifth connecting wire 51a that is on the extension part 23 extends and compact in the axial direction on the ninth connecting wire 61a is deposited, which was previously on the extension part 23 has extended.

The thirteenth floor area 28c positions the eighth connecting wire 51d , The fourteenth floor area 28d positions the twelfth connecting wire 61d ,

The bottom of the fourteenth slot 24n has a fifth floor area 25e on. The fifth floor area 25e is from the support surface 21d spaced by the diameter D. The fifth floor area 25e determines the position of the second connecting wire 41b with respect to the axial direction. The second connecting wire 41b is located between the first connecting wire 41a and the fifth connecting wire 51a , That means, the fifth floor area 25e is not in direct contact with the fifth connecting wire 51a ,

By the fifth floor area 25e the position of the second connecting wire 41b However, it defines indirectly the position of the fifth connecting wire 51a firmly. In addition, the fifth floor surface sets 25e also indirectly the position of the ninth connecting wire 61a firmly. The fifth connecting wire 51a [running] in the axial direction by the diameter D raised over the second connecting wire 41b , The ninth connecting wire 61a [running] in the axial direction by the diameter D raised over the fifth connecting wire 51a ,

In this way are on the support surface 21a four connecting wires 41a . 41b . 51a . 51b stacked in the axial direction. In 1A and 1B is a cross section of the second connecting protrusion corresponding fourth connecting wire 41d , the eighth connecting wire 51d and the twelfth connecting wire 61d to see.

In 3 is H1, the stack height of the connecting wires 41a ~ 61d to see. The stack height H1 is four times the connecting wires 41a ~ 61d , namely 4D ,

H2 shows the distance between the coil support surface 22a and the first coil end 44 , H1 is greater than H2, but the difference between H2 and H1 is within the diameter D. The one adjacent to the top 23e arranged twelfth connecting wire 61d consequently adjoins the first coil end 44 at. In other words, the position of the twelfth connecting wire 61d With respect to the axial direction, almost coincides with the first coil end 44 together.

As in 5 to see, stands the supernatant 23b from the guiding outer circumferential surface 23a outward in a radial direction. The supernatant 23b is in the environment of the upper end 23e of the extension part 23 arranged. The supernatant 23b acts as a limiting part [regulation portion] of the connecting wires 41a ~ 61d prevents movement in the axial direction. The supernatant 23b has a counter surface opposite the holding surface 23c on. [facing surface; the previous sentence is missing in the EN trans.] The distance between the opposite surface 23c and the support surface 21a is a bit bigger than 4D. The connecting wires 41a ~ 61d are between the support surface 21a and the counter surface 23c arranged. Every single connecting wire 41a ~ 61d is z. B. by means of a lacquer coating [impregnating] (varnish) fixed on the Führungsaussenumfang.

As in 1A to see, has the inner peripheral surface 2f of the housing 2 one the connecting wires 41a ~ 61d opposite counter area 2m on [facing region]. The counter area 2m is provided with an insulating paint to the connecting wires 41a ~ 61d from the case 2 to isolate.

Run the wire lines 40 ~ 60 over the guide outer circumferential surface 23a , be the first ends 42a ~ 62b and the second ends 42b ~ 62b Guided so that they are the end frame 3 to reach. That means that the first ends 42a ~ 62b and the second ends 42b ~ 62b on the second surface 30 are placed.

The first ends 42a ~ 62a go through the slots 24a ~ 24p and are characterized by the radial outer direction of the extension part 23 pulled in the radial direction inside. After that go through the first ends 42a ~ 62a the radial direction [the interior in the radial direction] of the annular jacket part 21 in the axial direction and become the end frame 3 directed. The wire lines 40 ~ 60 extend along the inner peripheral surface 21c the annular jacket part 21 , As in 1A to see the first ends 42a ~ 62a through the end frame 3 trained through hole 3c to the second area 3f of the end frame 3 guided. On the second surface 3f are one the aforementioned control circuit 70 having a circuit board 71 [circuit substrate] and a circuit board 71 Covering engine cover 80 assembled. The from the second surface 3f pulled out first ends 42a ~ 62a be with the circuit 70 extending conductor terminals [lead terminal] 72 connected by fusion [melting].

As in 3 to see is at the second insulator 30 a box 31 appropriate. The second ends 42a ~ 62a are inside the box 31 electrically connected by melting and form a zero point [neutral point].

As in 1A to see, the end frame points 3 a the aforementioned sensor magnet 9 corresponding exposure hole 3d [hole for exposure]. The circuit board 71 has a sensor magnet 9 opposite Hall IC 73 on. The Hall IC 73 recognizes the with the rotation of sensor magnet 9 accompanying changes in the magnetic flux and gives the detection signal to the control circuit 70 further. The control circuit 70 recognizes the rotational position of the rotor core due to the detection signal 7 , Due to the aforementioned detection signal supplies the control circuit 70 the wire lines 40 ~ 60 a drive current. As a result arises in the stator 10 a rotational magnetic field and the rotor core 7 turns.

As in 1A to see, points the rotary shaft 6a one out of the case 2 protruding projecting part 90 on. At the prominent part 90 is by means of a fixing pin [attachement pin] 102 a joint 100 attached. The protruding part 90 has a mounting hole 91 [ attachement hole], which extends radially and the protruding part 90 penetrates. The joint 100 has the joint 100 radially penetrating mounting hole 101 on. [Orig .: hole to which (something) is attached] The mounting hole 101 has a slightly larger diameter than the mounting hole 91 , The fixing pin 102 leads through the mounting hole 101 and will be in the aforementioned mounting hole 91 pressed. This is the joint 100 at the rotary shaft 6a attached. The joint 100 has a rotationally engaging portion 103 on. The turning part 103 is connected to a driven body not shown in the figure. Thus, the brushless motor rotates 1 the rotary shaft 6a and drives the driven body not shown in the figure.

• (1) Dadurch dass die Verbindungsdrähte 41a ~ 61d durch die Schlitze 24a ~ 24p laufen, werden sie von der radialen Innenrichtung zur Aussenrichtung des Verlängerungsteils 23 geführt. Deshalb wird die Verlaufsposition der Verbindungsdrähte 41a ~ 61d zur Führungsaussenumfangsfläche 23a in axialer Richtung wie in Umfangsrichtung bestimmt. Deshalb sind die Verbindungsdrähte 41a ~ 61d einfach am Stator anzubringen.
• (2) Die Verbindungsdrähte 41a ~ 61d werden auf den zuerst angeordneten Verbindungsdraht 41a in axialer Richtung aufgelagert. Deshalb werden die Verbindungsdrähte 41a ~ 61d von dem zuerst angeordneten Verbindungsdraht 41a indirekt an der Bodenfläche 25c des Schlitzes 24p positioniert. Deshalb ist das Mass des Verlängerungsteils 23 in axialer Richtung nicht grösser als das Produkt aus dem Durchmesser D der Verbindungsdrähte 41a ~ 61d und der Anzahl der in axialer Richtung angeordneten Verbindungsdrähte 41a ~ 61d. Deshalb kann der bürstenlose Motor in axialer Richtung kleiner sein [reduced in size], als bei dem in Patenveröffentlichung Hei 11[1999]-558833 offengelegten technischen Stand. Während nämlich in Patenveröffentlichung Hei 11[1999]-558833 die Verbindungsdrähte von Wänden der Aussenumfangsnuten unterteilt werden, weist das vorliegende Ausführungsbeispiel keine derartigen Wände auf.
• (3) Die Position der Bodenflächen 25a ~ 25d in Verlängerungsrichtung des Verlängerungsteils 23 wird in Übereinstimmung mit der Position der Verbindungsdrähte 41a ~ 61d festgelegt, an der diese zur Aussenumfangsfläche 23a laufen. Daher verhindern die Bodenflächen 25c, 25d, dass sich die Verbindungsdrähte 41a ~ 61d zum unteren Ende 23f bewegen. Deshalb wird verhindert, dass auf die Drahtleitungen 40 ~ 60 eine grosse Last wirkt, wenn die Drahtleitungen 40 ~ 60 aus den Schlitze 24a ~ 24p herausgeführt werden. Darüberhinaus braucht keine separate Führung auf der Aussenumfangsfläche angeordnet werden, welche die Verbindungsdrähte 41a ~ 61d zur Aussenumfangsfläche 23a führt.
• (4) Die Position der in der Umgebung des vorderen Endes 23e angeordneten Verbindungsdrähte 41a ~ 61d wird so festgelegt, dass sie in etwa mit mit dem ersten Spulenende 44 zusammenfällt. Daher befinden sich die Verbindungsdrähte 41a ~ 61d in axialer Richtung zwischen dem ersten Spulenende 44 und dem zweiten Spulenende 45. Deshalb kann der Raum [der nötig ist, um] die Verbindungsdrähte 41a ~ 61d zur Aussenumfangsfläche 23a zu führen, in radialer Richtung verdichtet werden.
• (5) Die Drahtleitungen 40 ~ 60 werden über die Führungsaussenumfangsfläche 23a in radialer Innenrichtung durch den ringförmigen Ummantelungsteil 21, und zum zweiten Isolator 30 geführt. Im Ergebnis werden die Drahtleitungen 40 ~ 60 am Verlängerungsteil 23 gestoppt. Deshalb werden die Drahtleitungen 40 ~ 60 so geführt, dass mit der ringförmigen Ummantelungsteil 21 in engen Kontakt geraten. Deshalb erübrigt sich ein separater Formbearbeitungsprozess der ersten Enden 42a ~ 62a und der zweiten Enden 42b ~ 262b. Genauer gesagt ist der zwölfte Verbindungsdraht 61d der in radialer Richtung am weitesten vom Endrahmen 3 entfernte Verbindungsdraht. Das erste Ende 62a verläuft entlang der Innenumfangsfläche 21c der ringförmigen Ummantelung 21 so, dass es in Richtung des Endrahmens 3 weist. Deshalb wird der zwölfte Verbindungsdraht 61d, der mit dem ersten Ende 62a verbunden wird, zum Endrahmen 3 gezogen. Die Leitung 60 steht in engem Kontakt mit der Innenumfangsfläche 21c der ringförmigen Ummantelung 21. Im Endergebnis drückt der zwölfte Verbindungsdraht 61d die Verbindungsdrähte 41a, 41d, 51d hin zum Endrahmen 3. Dass heisst, dass der zwölfte Verbindungsdraht 61d die Verbindungsdrähte 41a, 41d, 51d daran hindert, sich in axialer Richtung zu bewegen. [= hält sie in axialer Position] Deshalb ist es weitaus einfacher, ein Herausspringen der Verbindungsdrähte 41a, 41d, 51d zu verhindern.
• (6) Der Verlängerungsteil 23a erstreckt sich von dem in radialer Innenrichtung gelegenen Teil der Stützfläche 21a der ringförmigen Ummantelung 21 von innen in axialer Richtung zur entgegengesetzten Richtung des Endrahmens 3. Daher befindet sich der Verlängerungsteil 23 von der Basisaussenumfangsfläche 21b aus innerhalb der radialen Innenrichtung. Daher ist es unwahrscheinlich, dass die Verbindungsdrähte 41a ~ 61d in radialer Richtung nach aussen herausstehen.
• (7) Der Überstand 23b hindert die Verbindungsdrähte 41a ~ 61d an einer Bewegung in axialer Richtung.
• (8) Fixierharze, wie Lacküberzug (varnish) tränken die Verbindungsdrähte 41a ~ 61d und fixieren sie an der Führungsaussenumfangsfläche 23a. Deshalb wird z. B. verhindert, dass die Verbindungsdrähte 41a ~ 61d sich vom ersten Isolator 20 oder vom zweiten Isolator 30 abheben und mit dem Gehäuse 2 in Kontakt geraten.
• (9) Die Spulen U1 und U2 sind so bewickelt, dass die Drahtleitungen 40 ~ 60 zu den Zähnen 13a ~ 13l im Querschnitt die Form gestapelter Fässer [Orig. wörtl.: Säcke] [stacked barrels] aufweisen. Deshalb sind die Spulen U1 ~ U4 in hoher Dichte angeordnet. Infolge dessen kann der Stator 10 in der Grösse weiter reduziert werden.
• (10) Der Verlängerungsteil 23 ist auf der gegenüberliegenden Seite des Endrahmens 3 angeordnet. Daher ist der Stator 10 im Gehäuse 2 aufgenommen, ohne dass der Verlängerungsteil 23 mit dem Einsteckteil 3a [engaging portion] des Endrahmens in Konflikt gerät. Deshalb kann der bürstenlose Motor in axialer Richtung in der Grösse weiter reduziert werden. Einsteckteil 3a steckt [is engaged with] im Gehäuse 2.
• (11) Der Steuerkreis 70 ist auf der, auf die gegenüberliegende Seite von Stator 10 weisenden Fläche des Endrahmens 3 angeordnet. Deshalb wird verhindert, dass der Steuerkreis 70 zwischen Stator 10 und Endrahmen 3 hinderlich ist. Infolgedessen kann die Drehwelle 6a kürzer ausfallen im Vergleich zu dem Fall, dass z. B. der Steuerkreis 70 auf der zum Stator 10 weisenden Fläche des Endrahmens 3 angeordnet ist. Deshalb kann der bürstenlose Motor 1 in axialer Richtung weiter reduziert werden. Infolgedessen ist ein bürstenloser Motor mit einem Steuerkreis 70 einfach zu bilden. Darüber hinaus sind die ersten Enden 42a ~ 62a einfach direkt an den Steuerkreis 70 anzuschliessen. Deshalb kann ein Drahtleitungselement zum anschliessen der ersten Enden 42a ~ 62a an den Steuerkreis 70 entfallen. Zwischen dem Steuerkreis 70 und dem Stator 10 ist der Endrahmen 3 angeordnet. Daher kann einfach verhindert werden, dass sich eine Erwärmung des Stators 10, d. h. eine Erwärmung des bürstenlosen Motors 1 unmittelbar auf den Steuerkreis auswirkt. Darüber hinaus kann die am Steuerkreis 70 entstehende Wärme effektiv an diesen Endrahmen 3 geleitet und abgegeben werden.
• (12) Die Aufnahmevertiefung 7b an der zweiten Endfläche 7d des Rotorkerns 7 nimmt das zweite Achslager 5 auf. Das zweite Achslager 5 überlagert sich in radialer Richtung von aussen betrachtet in axialer Richtung mit dem Rotorkern 7. Deshalb ist es möglich, die Drehwelle 6a zu verkürzen. Deshalb kann der bürstenlose Motor 1 in axialer Richtung in der Grösse weiter reduziert werden.
• (13) Der hervorstehende Teil 90 der Drehwelle 6a weist ein Befestigungsloch 91 zum Befestigen des Verbindungsteil (joint) 100 auf. Im Vergleich z. B. zur unmittelbaren Befestigung des Verbindungsteils (joint) 100 am vorderen Ende der Drehwelle 6a, kann bei diesem Ausführungsbeispiel das Verbindungsteil (joint) 100 einfach[er] an der Drehwelle 6a befestigt werden. Der Verbindungsteil (joint) 100 ist mit der Drehwelle 6a aus der radialen Aussenrichtung verbunden. Ist der bürstenlose Motor flach, können der bürstenlose Motor und das Verbindungsteil (joint) 100 in ihrer Gesamtheit als ein Motorverbund (motor assembly) mit wenig vorstehenden Teilen ausgebildet werden. Infolgedessen kann der Raum für die Anordnung des Motorverbundes (motor assembly) kompakter ausfallen und der Motorverbund ist leichter zu handhaben.
• (14) [In einem Bereich] gegenüberliegend den Verbindungsdrähten 41a ~ 61d an der Innenumfangsfläche 2f des Gehäuses 2 ist das Gehäuse 2 mit einem Isolieranstrich versehen, um die Verbindungsdrähte 41a ~ 61d vom Gehäuse 2 zu isolieren. Deshalb kann eine Isolierung der Verbindungsdrähte 41a ~ 61d und des Gehäuse 2 gegeneinander sichergestellt werden.
• (15) Im Rotorkern 7 sind [oben: eine Mehrzahl – Übers.] permanente Magnet[en] 8 eingebettet. Da infolgedessen das Motordrehmoment erhöht werden kann, kann der bürstenlose Motor in der Grösse weiter reduziert werden. Das Motordrehmoment erhöht sich aufgrund der anziehenden und abstossenden Wirkung zwischen permanenten Magnet[en] 8 und Stator 10 sowie der anziehenden und abstossenden Wirkung zwischen Rotor 7 und Stator 10.
• (16) Eine Mehrzahl von Zähnen 13a ~ 13l sind mit dem ringförmigen Teil 12 einstückig ausgebildet. Deshalb kann die Länge der Verbindungsdrähte 41a ~ 61d auf das kleinste notwendige Mass, ohne dass ihnen die Spannung fehlt [slack], beschränkt werden. Dadurch kann der elektrische Widerstand in den Verbindungsdrähten 41a ~ 61d auf das kleinste notwendige Mass beschränkt werden. Das heisst, die Leitsung des bürstenlosen Motors 1 kann erhöht werden. Vergleichen wir [dieses Ausführungsbeispiel] z. B. mit dem Fall, dass der Statorkern aus einer Mehrzahl zusammengesetzter [Engl. Übers. ergänzt: jeweils mit Zähnen versehener] Teilkerne (divided core [pieces]) ausgebildet ist. Um die einzelnen Zähne wird eine Spule geformt, wobei die Mehrzahl von Teilkernen auf einer Geraden angeordnet ist und die einzelnen Zähne sich zueinander in einer parallellen Stellung befinden. Der Statorkern wird gebildet, indem die Mehrzahl von Teilkernen nach Abschluss der Formung der Spulen ringförmig angeordnet wird. Wenn die Teilkerne ringförmig angeordnet werden, müssen die einzelnen Verbindungsdrähte von vornherein läng[er] gemacht werden, damit jeder einzelne Verbindungsdraht lose ist, und die Verbindungsdrähte nicht gespannt werden. [Engl. Übers. hier ungenau: push against each other] Da aber in der vorliegenden Ausführungsform die Mehrzahl von Zähnen 13a ~ 13l mit dem ringförmigen Teil 12 einstückig ausgebildet sind, ist es nicht notwendig, dass die einzelnen Verbindungsdrähte 41a ~ 61d lose sind.
• (17) Die Verbindungsdrähte 41a ~ 61d durchlaufen die Schlitze 24a ~ 24p und werden dadurch von der radialen Innenrichtung des Verlängerungsteils 23 in die radiale Aussenrichtung gezogen und verlaufen zur Aussenumfangsseite 23a. Dadurch dass die Verbindungsdrähte 41a ~ 61d von der Aussenumfangsseite 23a aus die folgenden Schlitze 24a ~ 24p durchlaufen, werden sie von der radialen Aussenrichtung des Verlängerungsteils 23 nach innen gezogen. Infolgedessen werden die Verbindungsdrähte 41a ~ 61d gegen die Aussenumfangsseite 23a gepresst. Deshalb kann verhindert werden, dass sich die Verbindungsdrähte 41a 61d in die radiale Aussenrichtung spreizen. Infolgedessen ist kein sein separater Formbearbeitungsprozess der Verbindungsdrähte 41a ~ 61d notwendig.
• (18) Die Drahtleitungen 40 ~ 60 werden vom unteren Ende jedes Zahnes 13 aus um den jeweiligen Zahn 13 gewickelt. Der Abstand zwischen den unteren Enden der Mehrzahl von Zähnen 13 ist im bürstenlosen Motor mit Innenrotor 1 grösser als der Abstand zwischen den oberen Enden der Zähne 13. Deshalb sind sind die Drahtleitungen 40 ~ 60 einfach auf dem Innenumfang 21c der ringförmigen Ummantelung anzuordnen. Deshalb kann die Masse der Spulen U1 ~ U4 in radialer Richtung kleiner sein als im Vergleich zu einer Wicklungsposition der Drahtleitung 40 mit Beginn am oberen Ende der einzelnen Zähne 13. Infolgedessen kann der Stator 10 in der Grösse weiter reduziert werden.
• (19) Die Drahtleitungen 40 ~ 60 werden eine nach der anderen so um die Zähne 13a ~ 13l gewickelt, dass sie vom unteren Ende zum oberen Ende der Zähne 13a 13l weisen. Daher werden die Drahtleitungen 40 ~ 60 in einem Zustand um die Zähne 13a ~ 13l gewickelt, in dem die Verbindungsdrähte 41a ~ 61d nicht hinderlich sind. Deshalb können die Drahtleitungen 40 ~ 60 einfach auf die entsprechenden Zähne 13 aufgereiht werden. Deshalb kann der Stator 10 in der Grösse weiter reduziert werden.
• (20) Die Verbindungsdrähte 41c, 51b, 51c, 61b sind an der Führungsaussenumfangsfläche in axialer Richtung übereinandergestapelt. Deshalb darf [= braucht lediglich] dass Mass der Stützfläche 21a in radialer Richtung dem Wert des Durchmessers D von Verbindungsdraht 41c entsprechen. Deshalb kann der Stator 10 in der Grösse weiter reduziert werden. Deshalb kann der bürstenlose Motor 1 in der Grösse weiter reduziert werden. Das Mass der Aussenumfangsfläche 23a in axialer Richtung kann unter einen der Summe 4D aus den Durchmessern der Verbindungsdrähte 41a ~ 61d entsprechenden Wert gedrückt werden. Deshalb kann der Stator 10 in axialer Richtung weiter reduziert werden. Deshalb kann der bürstenlose Motor 1 in der Grösse in axialer Richtung weiter reduziert werden. Da die Verbindungsdrähte 41c, 51b, 51c, 61b in axialer Richtung übereinandergestapelt sind, sind die Drahtleitungen 40 ~ 60 einfach anzuordnen.

The embodiment has the following advantages.

• (1) By making the connecting wires 41a ~ 61d through the slots 24a ~ 24p run, they are from the radial inner direction to the outer direction of the extension part 23 guided. Therefore, the passing position of the connecting wires becomes 41a ~ 61d to the guide outer circumferential surface 23a determined in the axial direction as in the circumferential direction. That's why the connecting wires are 41a ~ 61d easy to attach to the stator.
• (2) The connecting wires 41a ~ 61d be on the first arranged connecting wire 41a superimposed in the axial direction. That's why the connecting wires become 41a ~ 61d from the first arranged connecting wire 41a indirectly on the floor surface 25c of the slot 24p positioned. That is why the measure of the extension is 23 in the axial direction not larger than the product of the diameter D of the connecting wires 41a ~ 61d and the number of connecting wires arranged in the axial direction 41a ~ 61d , Therefore, in the axial direction, the brushless motor can be reduced in size than in the prior art disclosed in Patent Publication Hei 11 [1999] -558833. Namely, while in patent publication Hei 11 [1999] -558833 divides the bonding wires from walls of the outer circumferential grooves be, the present embodiment has no such walls.
• (3) The position of the floor surfaces 25a ~ 25d in the extension direction of the extension part 23 will be in accordance with the position of the connecting wires 41a ~ 61d fixed, at the latter to the outer peripheral surface 23a to run. Therefore, prevent the floor surfaces 25c . 25d that the connecting wires 41a ~ 61d to the bottom 23f move. That is why it prevents on the wire lines 40 ~ 60 a big load works when the wire lines 40 ~ 60 out of the slots 24a ~ 24p be led out. Moreover, there is no need to arrange a separate guide on the outer circumferential surface which connects the connecting wires 41a ~ 61d to the outer peripheral surface 23a leads.
• (4) The position of the near the front end 23e arranged connecting wires 41a ~ 61d is set to approximate with the first coil end 44 coincides. Therefore, the connecting wires are located 41a ~ 61d in the axial direction between the first coil end 44 and the second coil end 45 , Therefore, the space [necessary to] the connecting wires 41a ~ 61d to the outer peripheral surface 23a lead to be compressed in the radial direction.
• (5) The wire lines 40 ~ 60 Beyond the guide outer circumferential surface 23a in the radial inner direction through the annular jacket part 21 , and to the second insulator 30 guided. As a result, the wire leads 40 ~ 60 on the extension part 23 stopped. That's why the wire lines 40 ~ 60 so guided that with the annular sheath part 21 get in close contact. Therefore, a separate molding process of the first ends is unnecessary 42a ~ 62a and the second ends 42b ~ 262b , More precisely, the twelfth connecting wire 61d in the radial direction furthest from the end frame 3 removed connection wire. The first end 62a runs along the inner peripheral surface 21c the annular sheath 21 so that it is towards the end frame 3 has. That's why the twelfth connecting wire 61d that with the first end 62a is connected to the end frame 3 drawn. The administration 60 is in close contact with the inner peripheral surface 21c the annular sheath 21 , In the end result, the twelfth connecting wire pushes 61d the connecting wires 41a . 41d . 51d towards the end frame 3 , That means that the twelfth connecting wire 61d the connecting wires 41a . 41d . 51d prevents it from moving in the axial direction. [= keeps them in axial position] Therefore, it is much easier, jumping out of the connecting wires 41a . 41d . 51d to prevent.
• (6) The extension part 23a extends from the radially inward part of the support surface 21a the annular sheath 21 from the inside in the axial direction to the opposite direction of the end frame 3 , Therefore, the extension part is located 23 from the base outer circumferential surface 21b from within the radial inner direction. Therefore, it is unlikely that the connecting wires 41a ~ 61d stick out in the radial direction.
• (7) The supernatant 23b prevents the connecting wires 41a ~ 61d on a movement in the axial direction.
• (8) Fixing resins such as varnish impregnate the bonding wires 41a ~ 61d and fix them on the outer guide peripheral surface 23a , Therefore, z. B. prevents the connecting wires 41a ~ 61d from the first insulator 20 or from the second insulator 30 stand out and with the case 2 get in touch.
• (9) The coils U1 and U2 are wound so that the wire leads 40 ~ 60 to the teeth 13a ~ 13l in cross-section the shape of stacked barrels [Orig. Lit .: sacks] [stacked barrels]. Therefore, the coils U1 ~ U4 are arranged in high density. As a result, the stator can 10 be further reduced in size.
• (10) The extension part 23 is on the opposite side of the end frame 3 arranged. Therefore, the stator 10 in the case 2 taken without the extension part 23 with the plug-in part 3a [engaging portion] of the end frame in conflict. Therefore, the brushless motor can be further reduced in size in the axial direction. plug 3a is [is engaged with] in the housing 2 ,
• (11) The control circuit 70 is on the, on the opposite side of Stator 10 facing surface of the end frame 3 arranged. Therefore, prevents the control circuit 70 between stator 10 and end frames 3 is a hindrance. As a result, the rotary shaft 6a shorter compared to the case that z. B. the control circuit 70 on the to the stator 10 facing surface of the end frame 3 is arranged. That's why the brushless motor 1 be further reduced in the axial direction. As a result, a brushless motor with a control circuit 70 easy to make. In addition, the first ends 42a ~ 62a just directly to the control circuit 70 to join. Therefore, a wire line member for connecting the first ends 42a ~ 62a to the control circuit 70 omitted. Between the control circuit 70 and the stator 10 is the end frame 3 arranged. Therefore, it can be easily prevented from heating the stator 10 ie heating of the brushless motor 1 directly affects the control circuit. In addition, the at the control circuit 70 Heat generated effectively at this end frame 3 be directed and delivered.
• (12) The Repository 7b at the second end surface 7d of the rotor core 7 takes the second axle box 5 on. The second axle bearing 5 superimposed in the radial direction from the outside in the axial direction with the rotor core 7 , That is why it is possible the rotary shaft 6a To shorten. That's why the brushless motor 1 be further reduced in size in the axial direction.
• (13) The protruding part 90 the rotary shaft 6a has a mounting hole 91 for fastening the connecting part (joint) 100 on. In comparison z. B. for direct attachment of the connecting part (joint) 100 at the front end of the rotary shaft 6a in this embodiment, the joint part 100 simply [he] on the rotary shaft 6a be attached. The connecting part (joint) 100 is with the rotary shaft 6a connected from the radial outer direction. If the brushless motor is flat, the brushless motor and the joint can be 100 be formed in their entirety as a motor assembly with little protruding parts. As a result, the space for the arrangement of the engine assembly can be made more compact and the engine assembly is easier to handle.
• (14) [In a range] opposite to the connecting wires 41a ~ 61d on the inner circumferential surface 2f of the housing 2 is the case 2 provided with an insulating coating to the connecting wires 41a ~ 61d from the case 2 to isolie Therefore, an insulation of the connecting wires 41a ~ 61d and the housing 2 be secured against each other.
• (15) In the rotor core 7 are [above: a plurality - overs.] permanent magnet [en] 8th embedded. As a result, since the motor torque can be increased, the size of the brushless motor can be further reduced. The motor torque increases due to the attractive and repulsive effect between permanent magnet [en] 8th and stator 10 as well as the attractive and repulsive effect between rotor 7 and stator 10 ,
• (16) A plurality of teeth 13a ~ 13l are with the annular part 12 integrally formed. Therefore, the length of the connecting wires 41a ~ 61d to the smallest necessary measure, without them lacking the tension [slack], limited. This can cause the electrical resistance in the connecting wires 41a ~ 61d be limited to the smallest necessary measure. That is, the guidance of the brushless motor 1 can be increased. Let us compare [this embodiment] e.g. With the case that the stator core is composed of a plurality of composite [Engl. Supplemented: each with toothed] divided cores [pieces] is formed. A spool is formed around the individual teeth, the plurality of sub-cores being arranged on a straight line and the individual teeth being in a parallel position relative to one another. The stator core is formed by annularly arranging the plurality of split cores after completing the formation of the coils. If the split cores are arranged in a ring, the individual connecting wires must be made long from the outset, so that each individual connecting wire is loose, and the connecting wires are not tensioned. [Engl. Here inaccurate: push against each other] However, since in the present embodiment, the plurality of teeth 13a ~ 13l with the annular part 12 are integrally formed, it is not necessary that the individual connecting wires 41a ~ 61d are loose.
• (17) The connecting wires 41a ~ 61d go through the slots 24a ~ 24p and thereby by the radial inner direction of the extension part 23 pulled in the radial outer direction and extend to the outer peripheral side 23a , Because of the connecting wires 41a ~ 61d from the outer peripheral side 23a from the following slots 24a ~ 24p they pass from the radial outer direction of the extension part 23 pulled inside. As a result, the connecting wires become 41a ~ 61d against the outer peripheral side 23a pressed. Therefore, it can be prevented that the connecting wires 41a 61d spread in the radial outer direction. As a result, there is no separate molding process of the bonding wires 41a ~ 61d necessary.
• (18) The wire lines 40 ~ 60 be from the bottom of each tooth 13 out around the particular tooth 13 wound. The distance between the lower ends of the plurality of teeth 13 is in brushless motor with inner rotor 1 greater than the distance between the upper ends of the teeth 13 , That's why the wires are 40 ~ 60 easy on the inner circumference 21c to arrange the annular casing. Therefore, the mass of the coils U1 ~ U4 in the radial direction may be smaller than compared to a winding position of the wireline 40 starting at the top of each tooth 13 , As a result, the stator can 10 be further reduced in size.
• (19) The wire lines 40 ~ 60 one after the other so around the teeth 13a ~ 13l Wrapped from the bottom to the top of the teeth 13a 13l point. Therefore, the wire lines 40 ~ 60 in a state around the teeth 13a ~ 13l wrapped in which the connecting wires 41a ~ 61d are not a hindrance. Therefore, the wire lines 40 ~ 60 just on the appropriate teeth 13 be lined up. That's why the stator can 10 be further reduced in size.
• (20) The connecting wires 41c . 51b . 51c . 61b are stacked on the guide outer circumferential surface in the axial direction. Therefore [= needs only] that measure of the support surface 21a in the radial direction, the value of the diameter D of connecting wire 41c correspond. That's why the stator can 10 be further reduced in size. That's why the brushless motor 1 be further reduced in size. The measure of the outer peripheral surface 23a in the axial direction can be under one of the sum 4D from the diameters of the connecting wires 41a ~ 61d corresponding value. That's why the stator can 10 be further reduced in the axial direction. That's why the brushless motor 1 be further reduced in size in the axial direction. Because the connecting wires 41c . 51b . 51c . 61b are stacked in the axial direction, are the wire lines 40 ~ 60 easy to arrange.

The following is the explanation of a second embodiment with reference to 7A . 7B and 8th ,

The fifteenth retaining overhang 27o indicates the fifteenth slot 24o a sixth side surface 26f on. The sixteenth retaining overhang 27p indicates the fifteenth slot 24o a seventh side surface 26g on. The twelfth connecting wire 61d is at the fifteenth slot 24o so bent that he has an angle over 90 °. The ninth connecting wire 61a is at the fifteenth slot 24o bent so that it has an angle over 90 °.

More precisely, the twelfth connecting wire 61d bent at an angle greater than 90 ° within a vertical plane to the axial direction. The sixth side surface 26f is circumferentially spaced from the side surface of the ninth coil W1. Therefore, the twelfth connecting wire extends 61d from the ninth coil W1 to the fifteenth slot 24o in the circumferential direction, becomes 180 ° around the sixth side surface 26f bent back around and through the fifteenth slot 24o through and along the outer peripheral surface 23a guided.

In other words, the sixth side surface 26f Bends the twelfth connecting wire 61d from the radial outer direction of the fifteenth slot 24o in the interior direction by 180 ° back. As a result, the twelfth connecting wire becomes 61d with respect to its circumferential direction and its radial direction on the extension part 23a stopped [engages with]. That means that the twelfth connecting wire 61d on the side wall ( 26f ) of the fifteenth retaining overhang 27o is bent by 180 °. The bent by 180 ° part of the twelfth connecting wire 61d is called bent part 132 ,

Likewise, the seventh side surface bends 26g the ninth connecting wire 61a from the radial outer direction of the fifteenth slot 24o in the interior direction by 180 °, making the ninth connecting wire 61a is stopped with respect to its circumferential direction and its radial direction.

• (21) Dadurch dass der sechszehnte Halteüberstand 27p den zwölften Verbindungsdraht 61d um 180° von der radialen Aussenrichtung in die Innenrichtung zurückbiegt, wird der zwölfte Verbindungsdraht 61d bezüglich seiner Umfangsrichtung und seiner radialen Richtung gehalten. Deshalb wird der zwölfte Verbindungsdraht 61d in der Position gehalten, in der er an der Führungsaussenumfangsfläche angeordnet ist. Daher kann ein Herausspringen des zwölften Verbindungsdrahtes 61d verhindert werden, ohne einen gesonderten Stopper (stopper) anzubringen, der eine Bewegung des zwölften Verbindungsdrahtes 61d in die radiale Aussenrichtung verhindert. Deshalb kann man den Abstand zwischen Gehäuse 2 und Stator 10 verkleinern. Deshalb kann der bürstenlose Motor 1 in der Grösse weiter reduziert werden. [im Original wahrscheinlicher Schreibfehler durch Verwechslung mit Schriftzeichen gleicher Lautung: mit kleinerem Radius]

The second embodiment has the following advantages.

• (21) In that the sixteenth retaining overhang 27p the twelfth connecting wire 61d Bends back by 180 ° from the radial outer direction in the inner direction, the twelfth connecting wire 61d held with respect to its circumferential direction and its radial direction. That's why the twelfth connecting wire 61d held in the position in which it is arranged on the Führungsaussenumfangsfläche. Therefore, jumping out of the twelfth connection wire 61d be prevented, without a separate stopper (stopper) to install, the movement of the twelfth connecting wire 61d prevented in the radial outer direction. That's why you can see the distance between housing 2 and stator 10 out. That's why the brushless motor 1 be further reduced in size. [in the original probable typographical error due to confusion with characters of the same phonetics: with a smaller radius]

The The aforementioned embodiment [s] can be used as follows modified become.

In the aforementioned embodiment, the distance between the respective first floor surface 25a ~ fifth floor area 25e and the support surface 21a in accordance with the passing position of the connecting wires 41a ~ 61d on the guiding outer peripheral surface 23a established. However, the invention is not limited to this embodiment, and the distance between the respective first floor surface 25a ~ fifth floor area 25e and the support surface 21a can also have a constant value. Also in this case, the position of the first on the extension part 23 arranged connecting wire on the floor surface 25 indirectly from that afterwards on the extension part 23 arranged connecting wire determined.

On the outer peripheral surface 23a may also have separate grooves and projections for guiding the connecting wires 41a ~ 61d be attached.

In the aforementioned embodiment, the first bottom surface is located 25a and the second floor area 25b on the same level as support surface 21a , However, the invention is not limited to this embodiment, and the first floor surface 25a and the second floor area 25b can also be in the axial direction of the support surface 21a be spaced.

In the aforementioned embodiment, the distance between between the first bottom surface 25a and the third floor area 25c not limited to being equal to the diameter D of the connecting wires 41a ~ 61d is, it can also be greater than this diameter D. In this case, there may be gaps between the connecting wires 41a ~ 61d to be appropriate. In this way, the space between the connecting wires 41a ~ 61d be adjusted arbitrarily.

In the aforementioned embodiment, the supernatant 23b at the front part 23e of the extension part 23 appropriate. The supernatant 23b acts as a limiting part [regulation portion] which lacks the connecting wires [ 41a ~ 61d ] prevents movement in the axial direction. However, the invention is not limited to this embodiment, and the supernatant 23b can also be in the environment of the back part 23f [of the extension part 23 ] to be appropriate. In this case, the supernatant is located 23b between the connecting wires 41a ~ 61d ,

To form the boundary part, z. B. the Führungsaussenumfangsfläche 23a be inclined so that the front end 23e radially outward than the lower end 23f , That is, the supernatant 23b can be omitted.

In the aforementioned embodiment, the first ends are 42a ~ 62a and the second ends 42b ~ 62b on the second insulator 30 arranged. However, the attachment position of the first ends 42a ~ 62a and the second ends 42b ~ 62b in accordance with the position of the control circuit 70 be adjusted arbitrarily.

In the aforementioned embodiment, the extension part is 23a annular. However, the invention is not limited to this embodiment, and the extension part 23a may be arbitrarily constituted as long as it has a radially outward direction from the first coil end 44 from [located] outside guide peripheral surface 22a so that the connecting wires 41a ~ 61d do not come into contact with the coils U1 ~ U4.

In the aforementioned embodiment, the extension part is 23a in the radial inner direction of the base outer surface 21b arranged out. However, the invention is not limited to this embodiment, and the extension part 23a may also be at the same level as the perimeter of the perimeter 23a lie.

The depth of the recording well 7b can be enlarged and the entire axle bearing 5 between the first coil end 44 and the second coil end 45 be arranged. That means that also the end frame 3 facing second end surface 5b of the second journal bearing between the first coil end 44 and the second coil end 45 can be arranged. That's why the brushless motor 1 be further reduced in size in the axial direction.

In the aforementioned embodiment, a joint is 100 by means of a fixing pin [attachement] (pin) 102 at the rotary shaft 6a attached. This can be changed so that the joint part 100 z. B. by means of a bolt 102 at the rotary shaft 6a is attached.

In the aforementioned embodiment, a plurality of teeth 13a ~ 13l with the annular part 12 integrally formed. However, the invention is not limited to this embodiment, and the stator core 11 can also be designed so that the stator core is formed from a plurality of composite partial cores. The individual partial cores have a shape such that the stator core 11 on the outer circumference in intervals [intervals] is divided at equal angles. For example, each of the split cores has one of the annular part 12 [ab] split circular part [annular portion] and a [single] of this circular part extending from the tooth.

In the aforementioned embodiment, [above: a plurality] permanent magnet [s] 8th in the rotor core 7 embedded. But permanent magnet can 8th also on the outer periphery of the rotor core 7 be stuck.

In the aforementioned embodiment, the connection wires 41a ~ 61d opposite counter area 2m in the inner circumferential surface 2f of the housing 2 provided with an insulating paint. However, the invention is not limited to this embodiment, and not just the counter area 2m but the entire inner peripheral surface 2f can be provided with an insulating coating.

In 9 is the guiding outer peripheral surface 23d of the extension part 23 to see in a modified [execution] example. By having the guide outer circumferential surface 23a inclined, lies the front end 23e in the radial direction on the outside, as the lower end 23f ,

In this case, the connecting wires 41c . 51b . 51c . 61b after being stacked one after another in contact with the rolling outer circumferential surface in the axial direction. The center of the first arranged second connecting wire 61b is from the center of the first connecting wire arranged thereafter 51c from [further] in radial interior direction.

In the recess, the first connecting wire 51c and the guide outer circumferential surface 23a separates, adds the second connecting wire 61b one. Therefore, the connecting wires 41a ~ 61d easy to stack in the axial direction. In this way, the invention is not limited to the embodiment in that the guide outer peripheral surface 23a extends parallel to the axial direction.

In 10 is the support surface 21d to see in a modified [execution] example. The support surface 21d tilts towards the radial outward direction. The angle that the support surface 21d and the guide outer circumferential surface 23d form, has a value less than 90 °. The support surface 21d comes in the radial outer direction and approaches the front end with respect to the axial direction 23e , That's why the support surface is 21d inclined so that the outer end of the support surface 21d protrudes in the radial direction in the axial direction.

In this case, it fits near the bottom end 23f arranged connecting wire 41c in the recess between the support surface 21d and the guide outer circumferential surface 23a , The connecting wires 41a ~ 61d are easy to stack in the axial direction. In this way, the invention is not limited to the support surface 21a the annular sheath 21 vertical to the axial direction.

As in 11 You can see the connecting wires 41c . 51b . 51c . 61b be stacked in the radial direction. That means, the connecting wires 41c . 51b . 51c . 61b are on the support surface 21a arranged. This in 11 shown measure of the extension part 23 in the axial direction, wherein z. B. the sixth connecting wire 51b following the first arranged third connecting wire 41c may be arranged so as to be superimposed thereon in the radial direction may be smaller, as compared with the case where the connecting wires 41c . 51b . 51c . 61b are stacked in the axial direction. That's why the brushless motor 1 be further reduced in size in the axial direction.

As in 2 shown, the connecting wires 41c . 51b . 51c . 61b also like barrels [Orig. Literally: sacks] [stacked barrels] are stacked on top of each other. The tenth connecting wire 61b fits into the recess between the third connecting wire 41c and the sixth connecting wire 51b , In the 12 shown connecting wires 41c . 51b . 51c . 61b are compared to a stacking z. B. alone in the axial or alone in the radial direction on the first insulator 20 arranged in high density. That's why stator can 10 and brushless motor 1 be further reduced in size.

The modified [execution] example in 13 and 13B has one of the annular sheath 21 to the end frame 3 extending annular second extension part 21e on. The second extension part 21e has a second guide outer circumferential surface 21f as outer circumference. The connecting wires 41a ~ 61d can also on the second outer peripheral surface 21f be arranged. The second extension part 21e has a lower end 21m , and one in 13 and 13b from the bottom 21m from upper left located upper end 21n on.

As in 13a to see is the stator core 11 stepped with a large diameter and one from this large diameter to the opposite side of the end frame 3 extending small diameter. The stator core 11 has a large outer peripheral surface 11d as outer peripheral surface of the large diameter, and a small outer peripheral surface 11d as the outer peripheral surface of the small diameter. The diameter of the large outer peripheral surface 11d is equal to the inner diameter of the aforementioned housing 2 ,

The second extension part 21e covers the small outer peripheral surface 11d from the radial outer direction. The outer diameter of the second extension part 21e is smaller than the outside diameter of the large diameter 11a , Accordingly, the second guide outer peripheral surface is located 21f from the large outer peripheral surface 11d out in the radial direction.

On the second Führungsaussenumfangsfläche is extending in the radial direction retaining projection 21g educated. The retaining overhang 21g acts as a radially extending holding part. The front end of the retaining overhang 21g lies on the large outer peripheral surface 11d from a little in the radial direction inside.

As in 13A to see, becomes the fourth connecting wire 41d from the extension part 23 pulled outward from the radial inner direction and on the second outer peripheral surface 21f 90 ° around the retaining overhang 21g guided. Thereafter, the fourth connecting wire 41d on the second outer peripheral surface 21f arranged so that it extends in the circumferential direction. On the second outer peripheral surface 21f be from the bottom 21m to the top 21n the fourth connecting wire 41d , the eighth connecting wire 51d as well as the twelfth connecting wire 61d superimposed in the axial direction.

In this case, the position of the connecting wires 41a ~ 61d in the axial direction and in the circumferential direction of the retaining projection extending in the radial direction 21g certainly. Because the connecting wires 41a ~ 61d from the extension part 23 are positioned in the radial outer direction, they are simply on the outer peripheral surface 23a respectively.

As in 14 can see the fourth connecting wire 14d also be bent at an angle over 90 °, so that the fourth connecting wire 14d around the retaining overhang 21g wraps. In this case, the fourth connection wire 14d be held in the radial direction and in the circumferential direction [engaged with].

All connecting wires 41a ~ 61d can also be at an angle over 90 ° from the radial outer direction of the extension part 23 be bent in the interior direction. In this case, it can be safely prevented that all connecting wires 41a ~ 61d Loose, so it is much easier, jumping out of the connecting wires 41a ~ 61d to prevent in the radial direction.

For example, the twelfth connecting wire 12d from the fourth side surface acting as the fourth holding part 26d positioned. In addition, the twelfth connecting wire 12d from the sixth side surface functioning as the second holding part 26f positioned.

The wire lines 40 ~ 60 are not limited to being wound in cross-section like stacked tons around the single coil U1 ~ W4.

As in 15 can be seen at the first end face 7a of the rotor core 7 also a recording 7e be educated. This means that in the in 1 shown embodiment above the receiving recess 7b only at the in the direction of the end frame 3 facing second end surface 7d of the rotor core 7 is appropriate.

By doing that in the receiving recess 7e the first axle box 4 can be included in the case of 15 the rotary shaft 6a be further shortened. That's why the brushless motor 1 be further shortened in the axial direction.

In the aforementioned embodiment, the receiving recess 7b also omitted.

As in 15 To see, the first recording part 2g also a double-walled structure with a first wall part 2h and one with this first wall part 2h overlapping second wall part 2y exhibit. In this case, the strength of the first receiving part increases 2g , The double-walled structure is z. B. easy to mold by a pressing process.

The first wall part 2h extends from the first bottom part 2y of the housing 2 towards the opening 2a , As a result, the second wall part 2i from the first wall part 2h to the bottom part 2y bent over, it overlaps with the first wall part 2h ,

The first wall part 2h and the second wall part 2i are shaped so that the first receiving part 2g not over the bottom part 2y out of the case 2 emerges. That's why the brushless motor 1 simply be grown on the other means.

As in 15 This can be the first axle bearing 4 receiving first receiving part 2g also with a movement of the first axlebox 4 in axial reach inhibiting holding part 2k be provided. In the axial direction exists between the rotor 6 and the housing 2 a gap to prevent the two from coming into contact with each other. The same gap exists in the axial direction between the rotor 6 and end frames 3 , The equipment with the holding part 2k allows a reduction of this gap. That's why the brushless motor 1 be further reduced in the axial direction. The holding part 2k is easy by prying [caulking] the wall of the first receiving part 2g train.

Claims (20)

A stator ( 10 ), characterized by [Orig .: whereby this stator ( 10 ) is equipped with] a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radial inner direction extending teeth ( 13 ); an insulator ( 20 ) with an annular sheath ( 21 ) for encasing the aforementioned annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the individual aforementioned teeth ( 13 ) extend in the radial inner direction; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned individual teeth ( 13 ) wound wire ( 40 ) are formed, wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction, the aforesaid extension part (16) 23 ) has: a front end facing in the aforementioned axial direction (US Pat. 23e ); and a back end ( 23f ); and one of the aforementioned front end ( 23e ) to the aforementioned rear end ( 23f ) extending slot ( 24 ); and one the aforementioned slot ( 24 ) dividing ground surface ( 25 ) and a side surface ( 26 ); and a radial outer surface ( 23a ); an aforementioned connecting wire ( 41a ) arranged so as to move away from the aforesaid first tooth ( 13h ), and by the aforesaid floor surface ( 25 ) and the aforementioned side surface ( 26 ) and from the aforementioned slot ( 24 ) in the radial outer direction of the aforementioned extension part ( 23 ) and along the aforementioned outer surface ( 23a ) to the aforementioned second tooth ( 13e ) applies. A stator ( 10 ) according to claim 1, characterized in that the aforesaid connecting wire ( 51a ) one of a plurality of connecting wires ( 51a . 41b ), and the aforementioned connecting wires ( 51a . 41b ) one the aforesaid first floor surface ( 25e ) contacting first connecting wire ( 41b ), and one after the aforementioned first connection wire ( 41b ) positioned second connecting wire ( 51a ); the second connecting wire ( 51a ) indirectly on the aforesaid floor surface ( 25e ) is positioned by the aforementioned second connecting wire ( 51a ) in the aforementioned axial direction on the first connecting wire ( 41b ) is stacked. A stator ( 10 ) according to claim 2, characterized in that in the aforesaid axial direction the position of the aforesaid bottom surfaces ( 25a ~ 25d ) in accordance with the position of the above ground surfaces ( 25a ~ 25d ) positioned connecting wires ( 41a ~ 61d ). A stator ( 10 ) according to claim 2 or 3, characterized in that the aforesaid radial outer surface ( 23d ) is inclined, so that the aforementioned front end ( 23e ) of the abovementioned extension part ( 23 ) is located in the radial inner direction. A stator ( 10 ) according to one of claims 2 to 4, characterized in that the aforementioned annular casing ( 21 ) a support surface ( 21d ) comprising the aforesaid connecting wire ( 41c ) in the radial outer direction of the aforementioned extension part ( 23 ) holds; and the aforesaid support surface ( 21d ) is inclined in the radial direction, so that the radially outer end of the aforementioned support surface ( 21d ) protrudes in the aforementioned axial direction. A stator ( 10 ) according to one of claims 1 to 5, characterized in that the aforesaid coils (U ~ U4) have an end in the axial direction ( 44 ) exhibit; and the position of the above-mentioned front end ( 23e ) approaching aforementioned connecting wire ( 61b ) the position of the aforementioned end in the axial direction ( 44 ) corresponds. A stator ( 10 ) according to one of claims 1 to 6, characterized in that the aforesaid stator core ( 11 ) in the aforementioned axial direction, a first end ( 11e ), on which the extension part ( 23 ), and a second end ( 11f ) on the opposite side of the aforementioned first end ( 11e ) having; and the ends of the aforementioned wire leads ( 42a ~ 62a . 42b ~ 62b ) through the aforementioned slots ( 24 ) in the radial outer direction of the extension part ( 23 ) are drawn along the aforementioned radial outer surface ( 23a ), the radial direction [= the interior in the radial direction] of the annular jacket part (FIG. 21 ) and to the second ends ( 11f ). A stator ( 10 ) according to one of claims 1 to 7, characterized in that the aforesaid extension part ( 23 ) from the aforementioned outer circumference 23b from the inside, so that the aforementioned connecting wires ( 41a ~ 61d ) from the outer circumference ( 21b ) of the aforementioned annular casing ( 21 ) lie in the radial inner direction. A stator ( 10 ) according to one of claims 1 to 8, characterized in that the cross section of the aforementioned individual coils (U1 ~ U4) has a plurality of cross sections of the aforementioned wire line ( 40 ), and these plurality of cross sections such as barrels [Orig. Literally: sacks] [stacked barrels] are stacked on top of each other. A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ); an insulator ( 20 ) with an annular sheath ( 21 ) for encasing the aforementioned annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the individual aforementioned teeth ( 13 ) extend in the radial inner direction; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned individual teeth ( 13 ) wound wire ( 40 ) are formed, wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction, the aforesaid extension part (16) 23 ) a radial outer surface ( 23a ), and the aforementioned connecting wire ( 41a ) is positioned so as to move away from the aforementioned first tooth ( 13h ) and of the aforementioned holding part ( 24 . 21g ) and in the radial outer direction of the aforementioned extension ( 23 ) and along the aforementioned radial outer surface ( 23a ) [runs] him to the aforementioned second tooth ( 13e ) should point. A stator ( 10 ) according to claim 10, characterized in that the aforesaid extension ( 23 ) in the aforementioned axial direction has an upper end ( 23e ) and a lower end ( 23f ), and the aforementioned holding part ( 24 . 21g ) the floor area ( 25 ) as well as the side surface ( 26 ) one of the aforementioned upper end ( 23e ) to the aforementioned lower end ( 23f ) extending slot ( 24 ), or one of the aforementioned annular sheath ( 21 ) in the radial direction protruding retaining projection ( 21g ). A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ), wherein the aforementioned plurality of teeth ( 13 ) with the aforementioned annular part ( 12 ) is integrally formed; an insulator ( 20 ) with an annular sheath ( 21 ) for encasing the aforementioned annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the individual aforementioned teeth ( 13 ) extend in the radial inner direction; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned individual teeth ( 13 ) wound wire ( 40 ), wherein the aforesaid plurality of coils (U1 ~ U4) comprise a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction, the aforesaid extension part (16) 23 ) an upper end ( 23e ) in the aforementioned radial direction, and in the lower end ( 23f ), and one of the aforementioned upper end ( 23e ) to the aforementioned lower end ( 23f ) extending first slot ( 24 ), and one of the aforementioned first slot ( 24 ) separating first floor surface ( 25 ) and a first side surface ( 26 ), and one of the aforementioned upper end ( 23e ) to the aforementioned lower end ( 23f ) extending second slot ( 24 ), and an aforementioned second slot ( 24 ) separating second floor surface ( 25 ) and a second side surface ( 26 ), and a radial outer surface ( 23a ) having; and the aforementioned connecting wire ( 41a ) is arranged so as to move away from the aforementioned first tooth ( 13h ) extends through the aforesaid first floor surface ( 25 ) and the aforementioned first side surface ( 26 ) is positioned, and along the aforementioned radial outer surface to the aforementioned second tooth ( 13e ), and due to the positioning by the aforesaid second floor surface ( 25 ) and the aforementioned side surface ( 26 ) of the radial outer direction of the aforementioned extension part ( 23 ) is guided in the radial inner direction. A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ), wherein the aforementioned plurality of teeth ( 13 ) is formed integrally with the aforementioned annular part; an insulator ( 20 ) with an annular sheath ( 21 ) for encasing the aforementioned annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the individual aforementioned teeth ( 13 ) extend in the radial inner direction, wherein the aforementioned annular sheath ( 21 ) extending in the aforementioned radial direction first holding part ( 24 . 21g ) and a second holding part ( 24 . 21g ) having; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned individual teeth ( 13 ) wound wire ( 40 ) are formed, wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction, the aforesaid extension part (16) 23 ) a radial outer surface ( 23a ), and the aforementioned connecting wire ( 41a ) is arranged so that it from the radially inner direction around the aforementioned first tooth ( 13h ) wound aforementioned coil (U1 ~ U4) guided in the radial outer direction, of the aforementioned first holding part ( 24 . 21g ) and positioned along the aforementioned radial outer surface (FIG. 23a ) so that it leads to the aforementioned second tooth ( 13e ), and of the aforementioned second holding part ( 24 . 21g ), and so on the abovementioned extension ( 23 ) is guided in the radial outer direction. A stator ( 10 ) according to claim 13, characterized in that the aforesaid extension ( 23 ) in the aforementioned axial direction has an upper end ( 23e ) and a lower end ( 23f ), and the aforementioned holding part ( 24 . 21g ) the floor area ( 25 ) as well as the side surface ( 26 ) one of the aforementioned upper end ( 23e ) to the aforementioned lower end ( 23f ) extending slot ( 24 ), or one of the aforementioned annular sheath ( 21 ) in the radial direction protruding retaining projection ( 21g ). A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part (FIG. 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ); an insulator ( 20 ) with an annular sheath ( 21 ) for encasing the aforementioned annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the individual aforementioned teeth ( 13 ) extend in the radial inner direction; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned individual teeth ( 13 ) wound wire ( 40 ) are formed, wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction, the aforesaid extension part (16) 23 ) has: a front end facing in the aforementioned axial direction (US Pat. 23e ); and a back end ( 23f ); and one of the aforementioned front end ( 23e ) to the aforementioned rear end ( 23f ) extending slot ( 24 ) as well as a second slot ( 24 ); and a side surface ( 26 ); and a radial outer surface ( 23a ); the aforementioned connecting wire ( 41a ) from the aforementioned first slot ( 24 ) in the radial outer direction of the aforementioned extension ( 23 ) and arranged so that it extends along the aforementioned outer surface ( 23a ) to the aforementioned second tooth ( 13e ), and of the aforementioned wall ( 26 ) bent at an angle of more than 90 ° and thus of the aforementioned second slot ( 24 ) in the radial inner direction of the aforementioned extension part ( 23 ) to be led. A stator ( 10 ) according to claim 15, characterized in that the connecting wire ( 41a ) one of a plurality of connecting wires ( 41a ~ 61d ), and all of the aforementioned slot ( 24 ) in the radial inner direction of the aforementioned extension part ( 23 ) guided connecting wires ( 41a ~ 61d ) of the aforementioned wall ( 26 ) are bent through an angle over 90 °. A stator ( 10 ) according to claim 15 or 16, characterized in that the connecting wire ( 41c ) one of a plurality of along the aforementioned radial outer surface ( 23a ) in the axial direction stacked connecting wires ( 41a . 51b . 51c . 61b ). A stator ( 10 ) according to claims 15 to 17, characterized in that the aforesaid stator core ( 11 ) in the aforementioned axial direction, a first end ( 11e ), on which the extension part ( 23 ), and a second end ( 11f ) on the opposite side of this first end ( 11e ) having; and the ends ( 42a ~ 62a . 42b ~ 62b ) of the aforementioned connecting wires ( 41a ~ 61d ) from the aforementioned end ( 11e ) to the aforesaid second end ( 11f ). A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ), wherein the aforementioned plurality of teeth ( 13 ) with the aforementioned annular part ( 12 ) is integrally formed; an insulator ( 20 ) with an annular sheath ( 21 ) for sheathing the annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the aforementioned individual teeth ( 13 ) extend in the radial inner direction, wherein the aforementioned annular sheath ( 21 ) a first holding part (24, 24) extending in the aforementioned radial inward direction 21g ) and a second holding part ( 24 . 21g ) having; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned teeth ( 13 ) wound wire ( 40 ), wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the The aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction; wherein the aforesaid extension part ( 23 ) a radial outer surface ( 23a ), and the aforementioned connecting wire ( 41a ) from that in the radially inner direction about the aforementioned first tooth ( 13 ) wound aforementioned coil (U1 ~ U4) guided in the radial outer direction, and by the aforementioned holding part ( 24 . 21g ) and positioned and arranged so that it extends along the aforementioned outer surface ( 23a ) to the aforementioned second tooth ( 13e ), and of the aforementioned second holding part ( 24 . 21g ) is held so that it is bent and positioned at an angle of more than 90 °, and thereby from the radial outer direction in the radial inner direction of the aforementioned extension part ( 23 ) to be led. A stator ( 10 ), characterized by a stator core ( 11 ), with an axial direction determining annular part ( 12 ) and a plurality of this annular part ( 12 ) in radially inward extending teeth ( 13 ), an isolator ( 20 ) with an annular sheath ( 21 ) for sheathing the annular part ( 12 ), and a plurality of Zahnummantelungsteilen ( 22 ), which differs from the aforementioned annular sheath ( 21 ) for covering the aforementioned individual teeth ( 13 ) extend in the radial inner direction, wherein the aforementioned annular sheath ( 21 ) a first holding part (24, 24) extending in the aforementioned radial inward direction 21g ) and a second holding part ( 24 . 21g ) having; a plurality of coils (U1 ~ U4) extending from one to the other of said tooth sheath portion (U1 ~ U4) 22 ) sheathed aforementioned teeth ( 13 ) wound wire ( 40 ) are formed, wherein the aforementioned teeth ( 13 ) a first tooth ( 13h ) and a second tooth ( 13e ) to which the aforesaid wireline ( 40 ) after the aforementioned first tooth ( 13h ) is wound; a connecting wire ( 41a ) for connecting the aforementioned coils (U1 ~ U4), one of the aforementioned first tooth ( 13h ) to the aforementioned second tooth ( 13e ) extending part of the aforementioned wire line ( 40 ); an extension part ( 23 ) so on the aforementioned annular sheath ( 21 ) is mounted so as to extend in the aforesaid axial direction; wherein the aforesaid extension part ( 23 ) a radial outer surface ( 23a ), and the aforementioned connecting wire ( 41a ) from the aforementioned first tooth ( 13h ), and of the aforementioned first holding part ( 26d ) and thus positioned and in the radial outer direction of the aforementioned extension part ( 23 ) and is arranged so that it extends along the aforementioned outer surface ( 23a ) to the aforementioned second tooth ( 13e ), and of the aforementioned second holding part ( 26f ) is held so that it is bent and positioned at an angle of more than 90 °, and thereby from the radial outer direction in the radial inner direction of the aforementioned extension part ( 23 ) to be led.